Change Oil Soon

The driver information center (DIC) displays the CHANGE ENGINE OIL message when the powertrain control module (PCM)/engine control module (ECM) determines that the engine oil life is 0 percent. The PCM/ECM sends a GMLAN serial data message to the BCM to request the DIC to display the CHANGE ENGINE OIL message. After the oil is changed, reset the engine oil monitor. Refer to GM Oil Life System - Resetting in Maintenance and Lubrication.